.\"	$NetBSD: mkfifo.1,v 1.6 1997/10/19 05:11:52 lukem Exp $
.\"
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.\"     @(#)mkfifo.1	8.2 (Berkeley) 1/5/94
.\"
.Dd January 5, 1994
.Dt MKFIFO 1
.Os BSD 4.4
.Sh NAME
.Nm mkfifo
.Nd make fifos
.Sh SYNOPSIS
.Nm mkfifo
.Op Fl m Ar mode
.Ar fifo_name  ...
.Sh DESCRIPTION
.Nm mkfifo
creates the fifos requested, in the order specified.
By default,
the resulting fifos have mode
.Li \&0666
(rw-rw-rw-), limited by the current
.Xr umask 2 .
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl m
Set the file permission bits of newly-created fifos to
.Ar mode ,
without respect to the current umask.
.Pp
The mode is specified as in 
.Xr chmod 1 .
In symbolic mode strings, the 
.Dq + 
and 
.Dq -
operators are interpreted relative to an assumed initial mode of 
.Dq a=rw
.El
.Pp
.Nm mkfifo
requires write permission in the parent directory.
.Pp
.Nm mkfifo
exits with 0 if successful, and with >0 if an error occurred.
.Sh LEGACY DESCRIPTION
In legacy mode, the fifo's file permission bits
are always limited by the current umask.
.Pp
For more information about legacy mode, see
.Xr compat 5 .
.Sh SEE ALSO
.Xr mkdir 1 ,
.Xr rm 1 ,
.Xr umask 1 ,
.Xr mkfifo 2 ,
.Xr umask 2 ,
.Xr compat 5 ,
.Xr mknod 8
.Sh STANDARDS
The
.Nm mkfifo
utility is expected to be
.St -p1003.2-92
compliant.
.Sh HISTORY
.Nm mkfifo
command appeared in
.Bx 4.4 .
